Home / 205,981.10-308,971.65-202,481.90

Finding the Fourth Proportional to 205,981.10, 308,971.65 and 202,481.90

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Solution

The fourth proportional to 205,981.10, 308,971.65 and 202,481.90 is: 303,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,981.10 : 308,971.65 = 202,481.90 : x
  2. Step 2: Convert to fraction form
    205,981.10/308,971.65 = 202,481.90/x
  3. Step 3: Cross multiply
    205,981.10x = 308,971.65 × 202,481.90
  4. Step 4: Simplify right side
    205,981.10x = 62,561,166,738.14
  5. Step 5: Solve for x
    x = 62,561,166,738.14/205,981.10
  6. Step 6: Final answer
    x = 303,722.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.